Size-Structures and Reproductive Characteristics in Diploid and Triploid Populations of Disporum sessile D. Don (Liliaceae)

Autor:	Tomoko Yokoi, Yota Yokoi, Yoshimichi Hori
Rok vydání:	1992
Předmět:	Disporum sessile Ecology biology Liliaceae Vegetative reproduction fungi food and beverages Plant Science Perennial herb biology.organism_classification Sexual reproduction Propagule Botany Ploidy Temperate rainforest reproductive and urinary physiology Ecology Evolution Behavior and Systematics
Zdroj:	Plant Species Biology. 7:77-85
ISSN:	1442-1984 0913-557X
DOI:	10.1111/j.1442-1984.1992.tb00221.x
Popis:	Disporum sessile (Liliaceae), a perennial herb of temperate forests is composed of diploid (2n=16) and triploid (2n=24) populations. The size structure differed remarkably as triploid populations had few small plants and no seedlings. Triploid flowering plants were considerably larger than diploids. Triploids that flowered were 2.5 times larger than diploids that flowered and the size of vegetative ramets produced by triploids was twice as large. In triploids, fruiting rates were quite low only with inviable seeds and vegetative propagule size was greater than that of diploids. As regards growth parameters that help to increase plant size, triploids were superior to diploids. Differences in growth and reproductive parameters between diploids and triploids may contribute to forming different patch sizes.
Databáze:	OpenAIRE
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